Electronic vaping device

ABSTRACT

A cartridge of an electronic vaping device includes a housing assembly and a reservoir cap assembly. The housing assembly is a single piece housing assembly. The reservoir cap assembly includes a reservoir cap having a hole there through and at least one wick extending through an opening in the reservoir cap.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a Continuation application of U.S. application Ser.No. 15/216,069, filed Jul. 21, 2016, the entire content of which isincorporated herein by reference.

BACKGROUND Field

The present disclosure relates to an electronic vaping or e-vapingdevice configured to deliver a pre-vapor formulation to a vaporizer.

Description of Related Art

An electronic vaping device includes a heater element, which vaporizes apre-vapor formulation to produce a vapor. The pre-vapor formulation mayinclude vapor formers, water, and/or flavors.

SUMMARY

At least one example embodiment relates to a cartridge of an electronicvaping device.

In at least one example embodiment, a cartridge of an electronic vapingdevice includes a housing assembly. The housing assembly is a singlepiece housing assembly that includes a housing extending in alongitudinal direction. The housing is generally cylindrical. Thehousing includes an outer surface, an inner surface, and a reservoirtherein. The reservoir is configured to contain a pre-vapor formulation.In at least one example embodiment, the housing assembly also includes atransverse end wall at a first end of the housing. The transverse endwall includes at least one outlet extending therethrough. The transversewall is integrally formed with the housing. In at least one exampleembodiment, the housing assembly also includes an opening in a secondend of the housing, a secondary transverse wall, and at least one airpassage extending longitudinally through the housing between the outersurface and the inner surface of the housing. The secondary transversewall is between the opening and the transverse end wall. The secondarytransverse wall and the inner surface define the reservoir. The at leastone air passage has at least one air passage outlet between thetransverse end wall and the secondary transverse wall such that the atleast one air passage outlet communicates with the at least one outlet.

In at least one example embodiment, the cartridge also includes areservoir cap assembly configured to be inserted in the opening. Thereservoir cap assembly includes at least one wick extending through anopening in the reservoir cap.

In at least one example embodiment, the wick is a monolithic wick. Themonolithic wick may include at least one slot extending longitudinallythrough the wick. The wick may include at least two slots. The slots mayhave same or different dimensions. The slots may be uniformly ornon-uniformly spaced in the wick. The wick may have a height of about 3mm to about 20 mm, a width of about 0.5 mm to about 3 mm, and a lengthof about 0.5 mm to about 3 mm. The wick may have a generally squarecross-section.

In another example embodiment, the wick comprises a plurality offilaments. The filaments may extend in the longitudinal direction.

In at least one example embodiment, the wick is formed from one or moreof cellulose, glass, ceramic and graphite.

In at least one example embodiment, the wick has a first end extendinginto the reservoir and a second end extending from the opening in thereservoir cap.

In at least one example embodiment, the reservoir is configured tocontain about 400 microliters to about 1000 microliters of the pre-vaporformulation.

In at least one example embodiment, the cartridge includes eight airpassages spaced substantially uniformly around the housing. Each of theair passages extends longitudinally between the outer surface and theinner surface of the housing.

At least one example embodiment relates to an electronic vaping device.

In at least one example embodiment, an electronic vaping device includesa cartridge and a power supply section.

In at least one example embodiment, a cartridge of an electronic vapingdevice includes a housing assembly. The housing assembly is a singlepiece housing assembly that includes a housing extending in alongitudinal direction. The housing is generally cylindrical. Thehousing includes an outer surface, an inner surface, and a reservoirtherein. The reservoir is configured to contain a pre-vapor formulation.In at least one example embodiment, the housing assembly also includes atransverse end wall at a first end of the housing. The transverse endwall includes at least one outlet extending there through. Thetransverse wall is integrally formed with the housing. In at least oneexample embodiment, the housing assembly also includes an opening in asecond end of the housing, a secondary transverse wall, and at least oneair passage extending longitudinally through the housing between theouter surface and the inner surface of the housing. The secondarytransverse wall is between the opening and the transverse end wall. Thesecondary transverse wall and the inner surface define the reservoir.The at least one air passage has at least one air passage outlet betweenthe transverse end wall and the secondary transverse wall such that theat least one air passage outlet communicates with the at least oneoutlet.

In at least one example embodiment, the cartridge also includes areservoir cap assembly configured to be inserted in the opening. Thereservoir cap assembly includes at least one wick extending through anopening in the reservoir cap.

In at least one example embodiment, the power supply section includes aheating element and a battery electrically connected to the heatingelement.

BRIEF DESCRIPTION OF THE DRAWINGS

The various features and advantages of the non-limiting embodimentsherein may become more apparent upon review of the detailed descriptionin conjunction with the accompanying drawings. The accompanying drawingsare merely provided for illustrative purposes and should not beinterpreted to limit the scope of the claims. The accompanying drawingsare not to be considered as drawn to scale unless explicitly noted. Forpurposes of clarity, various dimensions of the drawings may have beenexaggerated.

FIG. 1 is a side view of an electronic vaping device according to atleast one example embodiment.

FIG. 2 is an exploded side view of a cartridge and a power supplysection of the electronic vaping device of FIG. 1 according to at leastone example embodiment.

FIG. 3 is an exploded perspective view of the electronic vaping deviceof FIG. 1 according to at least one example embodiment.

FIG. 4 is a perspective view of a cartridge of an electronic vapingdevice according to at least one example embodiment.

FIG. 5 is a cut-out view of the cartridge of FIG. 4 along line V-Vaccording to at least one example embodiment.

FIG. 6 is a perspective view of a housing of the cartridge of FIG. 4according to at least one example embodiment.

FIG. 7 is a perspective view of an end cap assembly according to atleast one example embodiment.

FIG. 8 is a perspective view of a wick according to at least one exampleembodiment.

FIG. 9 is a cross-sectional view of the power supply section of FIG. 2along line IX-IX according to at least one example embodiment.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

Some detailed example embodiments are disclosed herein. However,specific structural and functional details disclosed herein are merelyrepresentative for purposes of describing example embodiments. Exampleembodiments may, however, be embodied in many alternate forms and shouldnot be construed as limited to only the example embodiments set forthherein.

Accordingly, while example embodiments are capable of variousmodifications and alternative forms, example embodiments thereof areshown by way of example in the drawings and will herein be described indetail. It should be understood, however, that there is no intent tolimit example embodiments to the particular forms disclosed, but to thecontrary, example embodiments are to cover all modifications,equivalents, and alternatives falling within the scope of exampleembodiments. Like numbers refer to like elements throughout thedescription of the figures.

It should be understood that when an element or layer is referred to asbeing “on,” “connected to,” “coupled to,” or “covering” another elementor layer, it may be directly on, connected to, coupled to, or coveringthe other element or layer or intervening elements or layers may bepresent. In contrast, when an element is referred to as being “directlyon,” “directly connected to,” or “directly coupled to” another elementor layer, there are no intervening elements or layers present. Likenumbers refer to like elements throughout the specification. As usedherein, the term “and/or” includes any and all combinations of one ormore of the associated listed items.

It should be understood that, although the terms first, second, third,etc. may be used herein to describe various elements, components,regions, layers and/or sections, these elements, components, regions,layers, and/or sections should not be limited by these terms. Theseterms are only used to distinguish one element, component, region,layer, or section from another region, layer, or section. Thus, a firstelement, component, region, layer, or section discussed below could betermed a second element, component, region, layer, or section withoutdeparting from the teachings of example embodiments.

Spatially relative terms (e.g., “beneath,” “below,” “lower,” “above,”“upper,” and the like) may be used herein for ease of description todescribe one element or feature's relationship to another element(s) orfeature(s) as illustrated in the figures. It should be understood thatthe spatially relative terms are intended to encompass differentorientations of the device in use or operation in addition to theorientation depicted in the figures. For example, if the device in thefigures is turned over, elements described as “below” or “beneath” otherelements or features would then be oriented “above” the other elementsor features. Thus, the term “below” may encompass both an orientation ofabove and below. The device may be otherwise oriented (rotated 90degrees or at other orientations) and the spatially relative descriptorsused herein interpreted accordingly.

The terminology used herein is for the purpose of describing variousexample embodiments only and is not intended to be limiting of exampleembodiments. As used herein, the singular forms “a,” “an,” and “the” areintended to include the plural forms as well, unless the context clearlyindicates otherwise. It will be further understood that the terms“includes,” “including,” “comprises,” and/or “comprising,” when used inthis specification, specify the presence of stated features, integers,steps, operations, elements, and/or components, but do not preclude thepresence or addition of one or more other features, integers, steps,operations, elements, components, and/or groups thereof.

Example embodiments are described herein with reference tocross-sectional illustrations that are schematic illustrations ofidealized embodiments (and intermediate structures) of exampleembodiments. As such, variations from the shapes of the illustrations asa result, for example, of manufacturing techniques and/or tolerances,are to be expected. Thus, example embodiments should not be construed aslimited to the shapes of regions illustrated herein but are to includedeviations in shapes that result, for example, from manufacturing.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which example embodiments belong. Itwill be further understood that terms, including those defined incommonly used dictionaries, should be interpreted as having a meaningthat is consistent with their meaning in the context of the relevant artand will not be interpreted in an idealized or overly formal senseunless expressly so defined herein.

FIG. 1 is a side view of an electronic vaping device according to atleast one example embodiment.

In at least one example embodiment, as shown in FIG. 1, an electronicvaping device 100 may include a cartridge 10 and a power supply section110. The power supply section 110 has a first end 130 and a second end132. The cartridge has a first cartridge end 30 and a second cartridgeend 40.

In at least one example embodiment, the cartridge 10 includes a housingassembly 20 including a housing 19.

In at least one example embodiment, the power supply section 110 mayinclude a housing 119 extending in the longitudinal direction. Thehousing 119 may have at least one air inlet 200 extending through thehousing 119.

In at least one example embodiment, the housings 19, 119 may be formedof plastic or metal and may have a generally circular cross-section. Thehousings 19, 119 may have a square or triangular cross-section.Dimensions of the housings 19, 119 may be uniform along a length thereofor may be the same.

In at least one example embodiment, an outer diameter of the housing 119may be the same as the outer diameter of the housing 19, such that adiameter of the electronic vaping device 100 is uniform along a lengththereof.

In at least one example embodiment, the second cartridge end 40 is sizedand configured to be received within the first end 130 of the powersupply section 110. The second end 40 may friction fit within thehousing 119 of the power supply section 110.

In at least one example embodiment, the housing 119 of the power supplysection 110 includes at least one air inlet 200 formed therein. The airinlet 200 may be sized and configured to establish a desiredresistance-to-draw (RTD). The air inlet 200 may be positioned so thatair passing into the electronic vaping device 100 through the air inlet200 passes into the air passages 35 established in the cartridge 10.

In at least one example embodiment, the cartridge 10 may be replacedonce the pre-vapor formulation is depleted and the power supply section110 may be reused.

FIG. 2 is an exploded side view of a cartridge and a power supplysection of the electronic vaping device of FIG. 1 according to at leastone example embodiment.

In at least one example embodiment, as shown in FIG. 2, the electronicvaping device 100 is the same as in FIG. 1, but is shown with thecartridge 10 detached from the power supply section 110. The cartridgemay include a wick 25 at a second end 7 of the housing 19. The housing19, at the second end 7, may be sized and configured to be received inthe first end 130 of the power supply section 110.

FIG. 3 is an exploded perspective view of the electronic vaping deviceof FIG. 1 according to at least one example embodiment.

In at least one example embodiment, as shown in FIG. 3, the electronicvaping device 100 is the same as in FIGS. 1 and 2, but a heater 120 isshown in the power supply section 110, and a transverse end wall 55 withoutlets 65 is shown at the first cartridge end 30 of the cartridge 10.Air and/or vapor may flow through the at least one outlet 65 whenexiting the cartridge 10.

FIG. 4 is a perspective view of a cartridge of an electronic vapingdevice according to at least one example embodiment.

In at least one example embodiment, as shown in FIG. 4, the cartridge 10is the same as in FIGS. 1, 2, and 3, but in greater detail. As shown inFIG. 4, the cartridge 10 includes a reservoir cap assembly 15 and ahousing assembly 20.

In at least one example embodiment, the housing assembly 20 is a singlepiece that is integrally formed. The housing assembly 20 may be 3Dprinted or injection molded.

In at least one example embodiment, the housing assembly 20 includes thehousing 19 extending in a longitudinal direction. The housing 19 may beabout 10 mm to about 50 mm in length (e.g., about 15 mm to about 45 mm,about 20 mm to about 40 mm, or about 35 mm to about 35 mm). In at leastone example embodiment, the housing 19 may have a diameter ranging fromabout 5 mm to about 10 mm (e.g., about 7 mm to about 8 mm). The diameterof the housing 19 may be larger at a first end 8 than at a second end 7.

In at least one example embodiment, the housing 19 may be generallycylindrical in cross-section. In at least one example embodiment, thehousing 19 may have a generally triangular cross-section.

In at least one example embodiment, the housing 19 may be formed ofplastic or metal. The plastic or metal may be heat resistant. In atleast one example embodiment, suitable plastics include high densitypolyethylene (HDPE), nylon, and polyamide. The plastic may bebiodegradable. The plastic may be coated with a chemically inertmaterial so as to prevent reactions with the pre-vapor formulationand/or degradation of the plastic.

In at least one example embodiment, as shown in FIG. 4, the reservoircap assembly 15 may include a reservoir cap 17 having an opening 18therein and the wick 25 extending through the opening 18.

In at least one example embodiment, the wick 25 may be a monolithicwick. In some example embodiments, the wick 25 may include a pluralityof filaments.

In at least one example embodiment, the wick 25 is formed from one ormore of cellulose, glass, ceramic and graphite. For example, the wickmay be formed of alumina and/or zirconia.

FIG. 5 is a cut-out view of the cartridge of FIG. 4 along line V-Vaccording to at least one example embodiment.

In at least one example embodiment, as shown in FIG. 5, the cartridge 10is the same as in FIGS. 1-4, but is shown with a reservoir 50 within thecartridge 10. In at least one example embodiment, the housing 19includes an outer surface 21 and an inner surface 22. A reservoir 50 isdefined between opposing portions of the inner surfaces 22 of thehousing 19 and the reservoir cap assembly 15.

In at least one example embodiment, the reservoir 50 is sized andconfigured to contain a pre-vapor formulation.

In at least one example embodiment, the reservoir 50 is configured tocontain about 400 microliters to about 1000 microliters (e.g., about 500microliters to about 900 microliters or about 600 microliters to about800 microliters) of the pre-vapor formulation.

In at least one example embodiment, the pre-vapor formulation is amaterial or combination of materials that may be transformed into avapor. For example, the pre-vapor formulation may be a liquid, solidand/or gel formulation including, but not limited to, water, beads,solvents, active ingredients, ethanol, plant extracts, natural orartificial flavors, and/or vapor formers such as glycerin and propyleneglycol. The pre-vapor formulation may include those described in U.S.Patent Application Publication No. 2015/0020823 to Lipowicz et al. filedJul. 16, 2014 and U.S. Patent Application Publication No. 2015/0313275to Anderson et al. filed Jan. 21, 2015, the entire content of each ofwhich is incorporated herein by reference thereto.

In at least one example embodiment, the cartridge 10 may be replaceable.In other words, once the pre-vapor formulation of the cartridge 10 isdepleted, the cartridge 10 may be discarded and replaced with a newcartridge. In another example embodiment, the reservoir 50 in thecartridge 10 may be refilled, such that the cartridge 10 is reusable.

In at least one example embodiment, the reservoir 50 may optionallycontain a storage medium (not shown). The storage medium may beconfigured to store the pre-vapor formulation therein. The storagemedium 210 may include a winding of cotton gauze or other fibrousmaterial.

In at least one example embodiment, the storage medium may be a fibrousmaterial including at least one of cotton, polyethylene, polyester,rayon and combinations thereof. The fibers may have a diameter rangingin size from about 6 microns to about 15 microns (e.g., about 8 micronsto about 12 microns or about 9 microns to about 11 microns). The storagemedium may be sintered, porous, or foamed material. Also, the fibers maybe sized to be irrespirable and may have a cross-section which has aY-shape, cross shape, clover shape or any other suitable shape.

In at least one example embodiment, the housing assembly 20 includes atransverse end wall 55 at the first end 8 of the housing 19. Thetransverse end wall 55 includes the at least one outlet 65 (shown inFIG. 3) extending therethrough. The transverse end wall 55 is integrallyformed with the housing 19.

In at least one example embodiment, the housing assembly 20 alsoincludes a secondary transverse wall 60 between the transverse end wall55 and the second end 7 of the housing 19. The secondary transverse wall60 is also integrally formed with the housing 19. There are no outletsthrough the secondary transverse wall 60. Thus, the secondary transversewall 60, along with the inner surface 22 of the housing 19 and the endcap assembly 15, define the reservoir 50 when the cartridge isassembled. The secondary transverse wall 60 is sized and configured toform part of the reservoir 50 and extends between opposing portions ofthe inner surface 22 of the housing 19.

In at least one example embodiment, the housing assembly 20 alsoincludes at least one air passage 35 extending longitudinally throughthe housing between the outer surface 21 and the inner surface 22 of thehousing 19. The at least one air passage 35 communicates with theoutlets 65 (shown in FIG. 3). Accordingly, air and/or vapor flows intothe cartridge 10 via the air passages 35 and exits via the outlets 65.

In at least one example embodiment, the cartridge 10 includes eight airpassages 35 spaced substantially uniformly around the housing 19 of thehousing assembly 20. The number of air passages 35 may be altered toadjust a resistance-to-draw (RTD) of the electronic vaping device 100(shown in FIG. 1).

In at least one example embodiment, the cartridge 10 also includes thereservoir cap assembly 15 that is configured to be inserted in anopening 45 of the housing assembly 20.

In at least one example embodiment, as shown in FIG. 5, the reservoircap assembly 15 compression fits and/or friction fits within the opening45 of the housing assembly 20. The reservoir cap assembly 15 may bepermanently glued in place within the opening 45 of the housing assembly20. In another example embodiment, the reservoir cap assembly 15 may beremovable from the opening 45 of the housing assembly 20 so as tofacilitate refilling of the reservoir 50.

In at least one example embodiment, the wick 25 has a first end 27 thatextends into the reservoir 50. The wick 25 also includes a second end 26that protrudes from the opening 18 in the reservoir cap 17. In at leastone example embodiment, the second end 26 protrudes from the opening 18by about 2 mm to about 8 mm (e.g., about 3 mm to about 7 mm or about 4mm to about 6 mm).

FIG. 6 is a perspective view of a housing of the cartridge of FIG. 4according to at least one example embodiment.

In at least one example embodiment, as shown in FIG. 6, the housing 19is the same as in FIGS. 1-5, but is shown without the reservoir capassembly 15 inserted in the opening 45 at the second end 7 of thehousing 19.

FIG. 7 is a perspective view of a reservoir cap assembly according to atleast one example embodiment.

In at least one example embodiment, as shown in FIG. 7, the reservoircap assembly 15 is the same as the reservoir cap assembly 15 shown inFIG. 5, but is shown detached from the cartridge 10. In at least oneexample embodiment, the wick 25 is a monolithic wick.

FIG. 8 is a perspective view of a wick according to at least one exampleembodiment.

In at least one example embodiment, as shown in FIG. 8, the wick may bea monolithic wick that includes at least one slot 90 extendinglongitudinally through the wick 25.

In at least one example embodiment, the wick 25 may include at least twoslots 90. The slots 90 may be evenly spaced through the wick 25. Theslots 90 may have same or different dimensions.

In at least one example embodiment, the slot 90 is about 100 to about400 microns wide (e.g., about 200 to about 300 microns wide).

In at least one example embodiment, the wick 25 may have a length (“L”)of about 4 cm to about 6 cm, a width (“W”) of about 4 cm to about 6 cm,and a height (“H”) of about 5 mm to about 25 mm.

In at least one example embodiment, filter paper 28 may be applied tocorners of the wick 25 at the second end 26. The filter paper 28 mayminimize and/or reduce leakage from the reservoir 50 and/or around thewick 25. The filter paper 28 may be adhered to edges of the wick 25 andis positioned so as not to occlude the slots 90.

FIG. 9 is a cross-sectional view of the power supply section of FIG. 2along line IX-IX according to at least one example embodiment.

In at least one example embodiment, as shown in FIG. 9, the power supplysection 110 includes a battery 145, a control circuit 150, a sensor,160, a light 170, a heating element 120, and a heating element support125 within the housing 119. An end cap 180 may be inserted in an openingat a second end 132 of the housing 119. An air inlet 200 may extendthrough a portion of the housing 119.

In at least one example embodiment, the battery 145 is electricallyconnected with the heating element 120. When air is drawn into the powersupply section 110 via the air inlet 200, negative pressure may besensed by the sensor 160. The control circuit 150 activates the heatingelement 120 in response to the sensed negative pressure.

In at least one example embodiment, the heating element 120 may includea wire coil which at least partially surrounds the wick 25 when thecartridge 10 is joined with the power supply section 110. The wire maybe a metal wire and/or the heater coil may extend fully or partiallyalong the length of the wick 25. The heater coil may further extendfully or partially around the circumference of the wick 25. In someexample embodiments, the heater coil may or may not be in contact withthe wick 25.

In at least one example embodiment, the heating element 120 is a planarheating element 120 that abuts the wick 25 when the electronic vapingdevice 100 is assembled.

In at least one example embodiment, the heating element 120 may beformed of any suitable electrically resistive materials. Examples ofsuitable electrically resistive materials may include, but not limitedto, titanium, zirconium, tantalum and metals from the platinum group.Examples of suitable metal alloys include, but not limited to, stainlesssteel, nickel, cobalt, chromium, aluminum-titanium-zirconium, hafnium,niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese andiron-containing alloys, and super-alloys based on nickel, iron, cobalt,stainless steel. For example, the heating element 120 may be formed ofnickel aluminide, a material with a layer of alumina on the surface,iron aluminide and other composite materials, the electrically resistivematerial may optionally be embedded in, encapsulated or coated with aninsulating material or vice-versa, depending on the kinetics of energytransfer and the external physicochemical properties required. Theheating element 120 may include at least one material selected from thegroup consisting of stainless steel, copper, copper alloys,nickel-chromium alloys, super alloys and combinations thereof. In atleast one example embodiment, the heating element 120 may be formed ofnickel-chromium alloys or iron-chromium alloys. In another exampleembodiment, the heating element 120 may be a ceramic heating elementhaving an electrically resistive layer, such as a layer of platinum, onan outside surface thereof.

In at least one example embodiment, the heating element 120 may heatpre-vapor formulation in the wick 25 by thermal conduction.Alternatively, heat from the heating element 120 may be conducted to thepre-vapor formulation by means of a heat conductive element or theheating element 120 may transfer heat to the incoming ambient air thatis drawn through the electronic vaping device 100 during vaping, whichin turn heats the pre-vapor formulation by convection.

In at least one example embodiment, the heating element support 125holds the heating element 120 in position within the power supplysection 110.

In at least one example embodiment, the battery 145 may be a Lithium-ionbattery or one of its variants, for example a Lithium-ion polymerbattery. Alternatively, the battery 145 may be a nickel-metal hydridebattery, a nickel cadmium battery, a lithium-manganese battery, alithium-cobalt battery or a fuel cell. The electronic vaping device 100may be usable by an adult vaper until the energy in the battery 145 isdepleted or in the case of lithium polymer battery, a minimum voltagecut-off level is achieved.

In at least one example embodiment, the battery 145 may be rechargeableand may include circuitry configured to allow the battery 145 to bechargeable by an external charging device. To recharge the electronicvaping device 100, an USB charger or other suitable charger assembly maybe used.

In at least one example embodiment, the electronic vaping device 100 mayinclude the sensor 160. The sensor 160 may be configured to sense an airpressure drop. The control circuit 150 initiates application of voltagefrom the battery 145 to the heating element 120. A light 170 may beactivated by the control circuit 150 when the heating element 120 isactivated. The light 170 may include a light-emitting diode (LED).Moreover, the light 170 may be arranged to be visible to an adult vaperduring vaping. In addition, the light 170 may indicate that rechargingis in progress. The light 170 may also be configured such that the adultvaper may activate and/or deactivate the light 170 for privacy.

In at least one example embodiment, the light 170 may be located on thesecond end 132 of the electronic vaping device 100. In other exampleembodiments, the light 170 may be located on a side portion of thehousing 119.

When activated, the heating element 120 may heat a portion of the wick25 for less than about 10 seconds or less than about 5 seconds. Thus,the power cycle may range in period from about 2 seconds to about 10seconds (e.g., about 3 seconds to about 9 seconds, about 4 seconds toabout 8 seconds or about 5 seconds to about 7 seconds).

In at least one example embodiment, the electronic vaping device 100 maybe about 80 mm to about 110 mm long and about 7 mm to about 8 mm indiameter. For example, in one example embodiment, the electronic vapingdevice 100 may be about 84 mm long and may have a diameter of about 7.8mm.

While a number of example embodiments have been disclosed herein, itshould be understood that other variations may be possible. Suchvariations are not to be regarded as a departure from the spirit andscope of the present disclosure, and all such modifications as would beobvious to one skilled in the art are intended to be included within thescope of the following claims.

We claim:
 1. A cartridge of an electronic vaping device, the cartridgecomprising: a housing assembly including, a housing extending in alongitudinal direction, the housing including, an outer surface and aninner surface; a reservoir configured to contain a pre-vaporformulation, the reservoir at least partially defined by the innersurface of the housing; a transverse end wall at a first end of thehousing, the transverse end wall having at least one outlet extendingtherethrough; an opening in a second end of the housing; and at leastone air passage extending longitudinally through the housing between theouter surface and the inner surface thereof.
 2. The cartridge of claim1, further comprising: a reservoir cap assembly configured to beinserted in the opening, the reservoir cap assembly defining an end ofthe reservoir.
 3. The cartridge of claim 2, wherein the reservoir capassembly comprises: a reservoir cap having an opening extending therethrough; and at least one wick extending through the opening in thereservoir cap.
 4. The cartridge of claim 3, wherein the wick is amonolithic wick.
 5. The cartridge of claim 3, wherein the wick includesone or more slots extending longitudinally through the wick.
 6. Thecartridge of claim 5, wherein the one or more slots includes at leasttwo slots.
 7. The cartridge of claim 5, wherein the one or more slotsare about 100 microns to about 400 microns wide.
 8. The cartridge ofclaim 5, wherein the one or more slots are evenly spaced.
 9. Thecartridge of claim 5, wherein the one or more slots have samedimensions.
 10. The cartridge of claim 5, wherein the one or more slotshave different dimensions.
 11. The cartridge of claim 4, wherein thewick has a height of about 6 cm, a width of about 3.5 mm and a length ofabout 3.5 mm.
 12. The cartridge of claim 3, wherein the wick comprises aplurality of filaments.
 13. The cartridge of claim 3, wherein the wickis formed from materials including cellulose, glass, ceramic, graphite,a sub-combination thereof, or a combination thereof.
 14. The cartridgeof claim 3, wherein the wick has a first end extending into thereservoir and a second end extending from the opening in the reservoircap.
 15. The cartridge of claim 1, wherein the reservoir is configuredto contain about 400 microliters to about 1000 microliters of thepre-vapor formulation.
 16. The cartridge of claim 1, wherein the atleast one air passage includes eight air passages spaced substantiallyuniformly around the housing.
 17. An electronic vaping devicecomprising: a cartridge including, a housing assembly, the housingassembly including, a housing extending in a longitudinal direction, thehousing including, an outer surface and an inner surface; a reservoirconfigured to contain a pre-vapor formulation, the reservoir at leastpartially defined by the inner surface of the housing, a transverse endwall at a first end of the housing, the transverse end wall having atleast one outlet extending therethrough, an opening in a second end ofthe housing; and at least one air passage extending longitudinallythrough the housing between the outer surface and the inner surfacethereof; and a power supply section including, a battery.
 18. Theelectronic vaping device of claim 17, further comprising: a heatingelement; and a reservoir cap assembly configured to be inserted in theopening, the reservoir cap assembly defining an end of the reservoir.19. The electronic vaping device of claim 18, wherein the reservoir capassembly comprises: a reservoir cap having an opening extending therethrough; and a wick extending through the opening in the reservoir cap,the wick in communication with the heating element.
 20. The electronicvaping device of claim 19, wherein the wick is a monolithic wick. 21.The electronic vaping device of claim 19, wherein the wick includes oneor more slots extending longitudinally through the wick.
 22. Theelectronic vaping device of claim 21, wherein the one or more slotsincludes at least two slots.
 23. The electronic vaping device of claim22, wherein the one or more slots are about 100 microns to about 400microns wide.
 24. The electronic vaping device of claim 21, wherein theone or more slots are evenly spaced.
 25. The electronic vaping device ofclaim 21, wherein the one or more slots have same dimensions.
 26. Theelectronic vaping device of claim 21, wherein the one or more slots havedifferent dimensions.
 27. The electronic vaping device of claim 17,wherein the at least one air passage includes eight air passages spacedsubstantially uniformly around the housing
 28. The electronic vapingdevice of claim 18, wherein the heating element is in the power supplysection.